REM https://github.com/rdp/screen-capture-recorder-to-video-windows-free is required
go run . -rtbufsize 100M -f dshow -i video="screen-capture-recorder" -pix_fmt yuv420p -c:v libx264 -bsf:v h264_mp4toannexb -b:v 1M -max_delay 0 -bf 0 -f h264 -